CN115988657A

CN115988657A - Data transmission method, communication node and storage medium

Info

Publication number: CN115988657A
Application number: CN202211599338.4A
Authority: CN
Inventors: 陈杰; 卢有雄; 苗婷; 邢卫民; 贺海港; 毕峰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-04-18
Also published as: WO2024125381A1

Abstract

The application discloses a data transmission method, a communication node and a storage medium. The method comprises the following steps: acquiring resource pool configuration information and semi-static channel occupation information; determining the resource position and the transmission mode of a channel according to the resource pool configuration information and the semi-static channel occupation information, wherein the channel is a data channel or a feedback channel; and transmitting data on the resource position according to the transmission mode.

Description

Data transmission method, communication node and storage medium

Technical Field

The present application relates to the field of communications technologies, and for example, to a data transmission method, a communication node, and a storage medium.

Background

Currently, 3GPP (3 rd Generation Partnership Project) systems support two ways of dynamic channel occupancy by devices based on load and semi-static channel occupancy based on frames to access channels in unlicensed bands. Generally, semi-static channel occupation may involve a semi-static occupation period of a device and an idle period in the semi-static occupation period, and when a Sidelink (SL) device operates in an unlicensed frequency band, under a conventional resource pool configuration, the SL device further needs to consider a channel occupation requirement in the semi-static occupation period and an influence of the idle period on each channel or signal transmission of an SL resource pool. Therefore, how to transmit the SL channel or signal under these influences by the SL device is a problem that needs to be solved at present.

Disclosure of Invention

An embodiment of the present application provides a data transmission method, including:

acquiring resource pool configuration information and semi-static channel occupation information;

determining the resource position and the transmission mode of a channel according to the resource pool configuration information and the semi-static channel occupation information, wherein the channel is a data channel or a feedback channel;

and transmitting data on the resource position according to the transmission mode.

An embodiment of the present application provides a communication node, including: a processor; the processor is adapted to implement the method of any of the above embodiments when executing the computer program.

Embodiments of the present application further provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the method of any one of the above embodiments.

With regard to the above embodiments and other aspects of the present application and implementations thereof, further description is provided in the accompanying drawings description, detailed description and claims.

Drawings

Fig. 1 is a timing diagram of a semi-static channel occupying device according to an embodiment;

fig. 2 is a schematic diagram of SL communication according to an embodiment;

fig. 3 is a schematic time domain resource configuration diagram of an SL resource pool according to an embodiment;

FIG. 4 is a diagram of an embodiment of a SL slot architecture without PSFCH;

FIG. 5 is a diagram of an embodiment of a SL slot architecture with PSFCH;

FIG. 6 is a schematic structural diagram of a plurality of SL slots according to an embodiment;

FIG. 7 is a diagram illustrating SL resource pools according to an embodiment;

FIG. 8 is a flowchart illustrating a data transmission method according to an embodiment;

fig. 9 is a schematic diagram of a first method for determining resource locations and transmission modes of a channel according to an embodiment;

FIG. 10 is a diagram illustrating a second method for determining resource locations and transmission modes of a channel according to an embodiment;

FIG. 11 is a diagram illustrating a resource location and a transmission manner of a third determined channel according to an embodiment;

FIG. 12 is a diagram illustrating a resource location and a transmission manner of a fourth determination channel according to an embodiment;

fig. 13 is a diagram illustrating a fifth method for determining resource locations and transmission modes of a channel according to an embodiment;

fig. 14 is a diagram illustrating a sixth method for determining resource locations and transmission modes of a channel according to an embodiment;

fig. 15 is a diagram illustrating a seventh method for determining resource locations and transmission modes of a channel according to an embodiment;

fig. 16 is a schematic diagram of resource location and transmission manner of an eighth determination channel according to an embodiment;

fig. 17 is a diagram illustrating a ninth method for determining resource locations and transmission modes of a channel according to an embodiment;

FIG. 18 is a block diagram of a data transmission apparatus according to an embodiment;

fig. 19 is a schematic structural diagram of a UE according to an embodiment;

fig. 20 is a schematic structural diagram of a base station (or higher-layer entity) according to an embodiment.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

On a channel of about 20 megahertz (MHz), when a device is configured to perform channel access in a semi-static channel occupying manner on an unlicensed spectrum, the device is generally configured with a channel occupying period (period UE) and an offset (offset) from a starting position, and an idle period (also called idle time) is predefined at the end of the channel occupying period for Listen Before Talk (LBT) of channel occupying in a next channel occupying period. The time domain length of idle period is typically max (0.05 × period ue, 100us).

Fig. 1 is a timing diagram of a semi-static channel occupying device according to an embodiment. As shown in fig. 1, the conditions that the device can transmit data during the channel occupying time of the channel occupying period are: the device succeeds in idle period LBT before the channel occupying period and transmits a signal at the starting position of the channel occupying period; or receiving Channel Occupancy Time (COT) shared information of other devices in the Channel Occupancy period, and performing data transmission based on the COT shared information.

Third Generation Partnership project (3 rd Generation Partnership project,3 gpp) New Radio (NR) versions 16 and 17 protocols define device-to-device SL communication. SL communication includes vehicle-to-vehicle (V2V) communication, vehicle-to-anything (V2X) communication, user Equipment (UE) direct communication with a UE (Device to Device, D2D), and the like. Fig. 2 is a schematic diagram of SL communication according to an embodiment. As shown in fig. 2, when there is a service to be transmitted between UEs, the UEs perform communication based on the SL resource pool, and the service data may not be forwarded by other network devices (e.g., base stations), but directly transmitted to the target device by the data source device, so that direct communication between the devices is achieved.

The data transmission method provided by the present application can be applied to SL communication systems based on various wireless communication technologies, such as SL communication systems based on Long Term Evolution (LTE) technology, fourth generation mobile communication technology (4 th-generation, 4G) technology, fifth generation mobile communication technology (5 th-generation, 5G) technology, LTE and 5G hybrid technology, 5G NR technology, and new communication technologies appearing in future communication development, such as sixth generation mobile communication technology (6 th-generation, 6G).

In the embodiment of the present application, a data transmission method, a communication node, and a storage medium are provided, which can solve the problem of influence of semi-static channel access configuration of a device on an unlicensed spectrum on an SL channel or a channel resource and transmission.

First, the concept related to the following embodiments of the present application is explained:

the SL resource pool is determined by the configuration of a high layer or the pre-configuration signaling, and the resource of the SL Synchronization Signal Block (S-SSB) is determined by the configuration of the high layer or the pre-configuration signaling outside the resource pool. The SL resource pool configuration includes time domain resource configuration, frequency domain resource configuration, and other parameter configurations such as a control channel and a feedback channel in the SL resource pool. In an embodiment, in the SL resource pool, the SL UE may obtain the physical layer resource grant information in a mode of mode 1 (base station scheduling) or mode2 (UE autonomously selecting resources) and perform data transmission.

For the time domain resource configuration of the SL resource pool, the 3GPP protocol defines the time domain resource within 10240ms of the radio frame period, and obtains the final time domain resource of the SL resource pool after the remaining slots excluding some special slots (slots) are mapped by a bitmap (bitmap). The special slots include:

(1) A side link Synchronization Signal Block (S-SSB) slot configured or pre-configured by a system;

(2) Slots available for non-SL, such as slots of some downlink (DL slots), etc.;

(3) Slots are reserved.

For example, taking Subcarrier spacing (SCS) of 15kHz as an example, fig. 3 is a schematic time domain resource configuration diagram of an SL resource pool according to an embodiment.

In an embodiment, slot symbols available for transmission of a SL signal in a SL slot are determined by configuring or pre-configuring signaling slot-StartSymbols and slot-LengthSymbols within the SL slot. Further, a Physical side link feedback channel (PSFCH) may be configured in the SL slot, where the PSFCH symbol is located at startslsymbles + length slsymbles-2 in the slot, and is repeatedly transmitted on the startslsymbles + length slsymbles-3 symbol. Thus, the PSFCH on SL is typically transmitted on two consecutive symbols within a slot.

FIG. 4 is a diagram illustrating an SL slot structure without PSFCH according to an embodiment; fig. 5 is a schematic diagram of an SL slot structure with PSFCH according to an embodiment. As shown in fig. 4, a SL slot usually contains 14 consecutive symbols, one empty symbol (GAP symbol) occupies one symbol, and a Physical side link Control Channel (PSCCH) symbol/Physical side link Shared Channel (PSCCH) symbol occupies at most 13 symbols; similarly, as shown in fig. 5, the PSCCH symbol/PSCCH symbol occupies a maximum of 10 symbols.

In an embodiment, the PSFCH time domain resources are distributed over time slots within the SL resource pool according to a configured or pre-configured periodicity. Fig. 6 is a schematic structural diagram of a plurality of SL slots according to an embodiment. As shown in fig. 6, when the period of the PSFCH is 2, one PSFCH transmission resource is configured or pre-configured in every 2 slots in the SL resource pool.

In an embodiment, for the frequency domain Resource configuration of the SL Resource pool, the SL Resource pool includes W subcarriers, where one subcarrier generally corresponds to a set of continuous Physical Resource Blocks (PRBs) or a set of discrete PRBs, and in one communication, the SL device selects L subcarriers in the SL Resource pool to transmit the psch. Taking the subframe channel based on continuous PRB composition for communication as an example, fig. 7 is a schematic diagram of an SL resource pool according to an embodiment.

In the embodiment of the present application, configuration generally refers to a manner in which a base station, an access point, a central node, a higher-level entity, or another network-side entity (hereinafter, referred to as a network side) notifies a configuration signaling to a UE; the pre-configuration generally refers to pre-stored configuration information or default configuration information of the UE leaving the factory, and in an embodiment, the pre-configuration may be updated through a network side or other manners; predefined means a configuration or parameter explicitly written on the protocol, which is not updatable. The following embodiments of the present application will not distinguish between configurations, preconfigurations, predefinitions, collectively referred to as configurations.

In an embodiment, the network side may configure the manner in which SL communication uses unlicensed spectrum (unlicensed band) as a semi-static manner. The embodiments described below may also assume that the usage pattern or mode of the unlicensed spectrum is configured to be semi-static.

In this embodiment, the transmission may refer to a process in which the source device sends data to the target device, or may refer to a process in which the target device receives data from the source device.

In the embodiment of the application, the first preset relationship corresponds to a relationship smaller than the first preset relationship, and the second preset relationship corresponds to a relationship greater than or equal to the second preset relationship; or the first preset relationship corresponds to a relationship smaller than or equal to the first preset relationship, and the second preset relationship corresponds to a relationship larger than the first preset relationship. For example, a and B satisfy a first predetermined relationship and C and D satisfy a second predetermined relationship, which may be understood as a being less than B, C greater than or equal to D, or as a being less than or equal to B, C greater than D.

Next, a data transmission method, a communication node, and technical effects thereof will be described.

Fig. 8 is a flowchart illustrating a data transmission method according to an embodiment, and as shown in fig. 8, the method according to this embodiment is applied to a first communication node. In this example, a first communication node (which may also be referred to as a first communication node device or first node) may be a source device, and a second communication node (which may also be referred to as a second communication node device or second node) may be a target device; alternatively, the first communication node may be a target device and the second communication node may be a source device. For ease of understanding, in the following embodiments, the first communication node is denoted as UE1, and the second communication node is denoted as UE2. The method comprises the following steps.

S110, acquiring resource pool configuration information and semi-static channel occupation information.

In an embodiment, the resource pool configuration information includes at least one of: time domain resource configuration parameters of a side link SL resource pool, frequency domain sub-band resource configuration parameters of the SL resource pool, control channel configuration parameters of the SL resource pool, data channel configuration parameters of the SL resource pool, feedback channel configuration parameters of the SL resource pool, and symbol configuration parameters in a time slot of the SL resource pool.

In an embodiment, the semi-static channel occupancy information includes at least one of: the information of the trigger signal in the channel occupying period, the first offset1 of the channel occupying period, the information of the idle time in the channel occupying period, and the like.

For the trigger signal in the channel occupying period, the information of the trigger signal in the channel occupying period includes at least one of the following: the time domain position of the trigger signal, the time domain length of the trigger signal.

The start position of the trigger signal is the sum of the start position of the channel occupying period and the second offset amount offset2 of the trigger signal.

The time domain length of the trigger signal is N symbols, and N is a positive integer.

For the idle time in the channel occupying period, the information of the idle time in the channel occupying period includes at least one of the following: the time domain position of the idle time, and the time domain length of the idle time.

The end position of the idle time is the sum of the end position of the channel occupation period and a third offset3 of the idle time; or, the starting position of the idle time is the sum of the ending position of the channel occupying period and the third offset3 of the idle time; or the starting position of the idle time is the sum of the starting position of the channel occupation period and a third offset3 of the idle time; alternatively, the time domain location of the idle time is a predefined time domain location.

In an embodiment, the semi-static channel occupancy information may include at least one of: the frequency domain resource position of the trigger signal in the channel occupation period and the format of the trigger signal in the channel occupation period.

The frequency domain Resource position of the trigger signal is a set of continuous PRBs within a configured or preconfigured or predefined Resource Block set (RB set), or a set of discrete PRBs, or all PRBs on one interlace, or a part of PRBs on one interlace.

The format of the trigger Signal includes PSCCH, pscsch, PSFCH, channel State Information-Reference Signal (CSI-RS), S-SSB, predefined sequence and Cyclic Prefix Extension (CPE).

In one embodiment, the frequency domain resource location of the trigger signal is orthogonal to the frequency domain resource of the PSFCH; the frequency domain resource location of the trigger signal is orthogonal to the frequency domain resource of the S-SSB.

In an embodiment, if the time domain position of the trigger signal overlaps with the time domain resource position of the data, the overlapping time domain resource position does not transmit the trigger signal.

And S120, determining the resource position and the transmission mode of a channel according to the resource pool configuration information and the semi-static channel occupation information, wherein the channel is a data channel or a feedback channel.

Specifically, the method for determining the resource location and the transmission mode of the channel according to the resource pool configuration information and the semi-static channel occupancy information in step S120 may include the following two steps:

step 1: and determining the available rule of the channel according to the resource pool configuration information and the semi-static channel occupation information.

In one embodiment, the semi-static channel occupancy information includes a channel occupancy period and an offset1 of the channel occupancy period; the available rules include a first available rule, a second available rule, and a third available rule. Step 1 above may be performed according to any of the following principles.

Principle 1: if the idle time position in the channel occupying period only has time domain overlapping with the PSSCH in the time slot of the resource pool, determining a first available rule.

Illustratively, the first available rule includes at least one of:

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH of the determined resource position in the time slot and a first preset threshold meet a first preset relation, the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

if the number of time domain symbols overlapped between the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a first preset relation, and the PSCCH related to the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot is not overlapped in the time domain, the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and the first preset threshold meet a second preset relation, or the PSCCH associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, discarding the PSSCH transmission in the time slot;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and the first preset threshold meet a second preset relation, or the PSCCH associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, triggering the high-level resource reselection of the device;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a second preset relation, or the idle time position in the channel occupation period and the PSCCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, triggering equipment to transmit a scheduling request SR or a buffer status report BSR;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and the first preset threshold meet a second preset relationship, or the idle time position in the channel occupation period and the PSSCH resource associated with the candidate PSSCH resource in the time slot are overlapped in the time domain, the physical layer excludes all PSSCH candidate resources on the time slot from the PSSCH initial candidate resource set;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and the first preset threshold meet a second preset relationship, or the idle time position in the channel occupation period and the PSSCH resource associated with the candidate PSSCH resource in the time slot are overlapped in the time domain, the physical layer excludes all PSSCH candidate resources on the time slot from the sensed candidate resource set to be reported;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and the first preset threshold meet a second preset relationship, or the idle time position in the channel occupation period and the PSSCH resource associated with the candidate PSSCH resource in the time slot are overlapped in the time domain, the Medium Access Control (MAC) layer excludes all PSSCH candidate resources on the time slot from the candidate resource set in the resource selection window;

if the number of the remaining PSSCH available symbols in the time slot and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a second preset relationship, the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

if the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a second preset relationship, and the PSCCHs associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot are not overlapped in the time domain, the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

if the number of the remaining PSSCH available symbols and a second preset threshold in the time slot, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the PSCCH associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, discarding the PSSCH transmission in the time slot;

if the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the PSCCH associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, triggering the device high-level resource reselection;

if the number of the remaining PSSCH available symbols and a second preset threshold in the time slot, except for the symbols overlapped between the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the PSCCH associated with the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, triggering the equipment to transmit SR or BSR;

if the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSSCH resources associated with the candidate PSSCH resources in the time slot are overlapped in the time domain, the physical layer excludes all PSSCH candidate resources on the time slot from the PSSCH initial candidate resource set;

if the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSSCH resources associated with the candidate PSSCH resources in the time slot are overlapped in the time domain, the physical layer excludes all PSSCH candidate resources on the time slot from the sensed candidate resource set to be reported;

if the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSSCH resources associated with the candidate PSSCH resources in the time slot overlap in the time domain, the MAC layer excludes all PSSCH candidate resources on the time slot from the candidate resource set in the resource selection window.

Principle 2: and if the idle time position in the channel occupation period only has time domain overlap with the PSFCH in the time slot of the resource pool, determining a second available rule or a third available rule.

Specifically, when the idle time position in the channel occupation period only has time domain overlap with the PSFCH in the time slot of the resource pool and only the PSFCH resource is considered, the second available rule is determined; the third available rule is determined when there is time-domain overlap of the idle time position within the channel occupancy period with only the PSFCH within the time slot of the resource pool, and the impact of the movement of the PSFCH on the PSSCH is taken into account.

Illustratively, the second available rule includes at least one of:

moving a time domain location of a PSFCH transmission within a time slot;

shifting the time domain position of the PSFCH transmission between time slots;

excluding time slots in the resource pool when mapping PSFCH time domain resources;

the slot stops the PSFCH transmission.

Illustratively, the third available rule includes at least one of:

if the time domain position of PSFCH transmission is moved in the time slot, the PSCCH related to the PSSCH of which the time domain position of the moved PSFCH transmission and the resource position in the time slot are determined does not overlap in the time domain, and the number of the remaining available symbols of the PSSCH in the moved time slot and a second preset threshold meet a second preset relation, the remaining PSSCH symbols in the time slot are allowed to be used for punching transmission or rate matching transmission;

if the time domain position of PSFCH transmission is moved in the time slot, and the number of the residual available symbols of the PSSCH in the moved time slot and a second preset threshold meet a second preset relation, the residual PSSCH symbols in the time slot are allowed to be used for punching transmission or rate matching transmission;

if the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with a PSCCH (pseudo-random channel control channel) associated with a PSSCH (Primary synchronization channel) with a determined resource position in the time slot in the time domain, or the number of remaining available symbols of the PSSCH in the moved time slot and a second preset threshold meet a first preset relation, the PSSCH transmission in the time slot is discarded;

if the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the moved time slot and a second preset threshold meet a first preset relation, all PSSCH candidate resources on the time slot are excluded from a PSSCH initial candidate resource set by a physical layer;

if the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the PSFCH transmission after the movement is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the time slot after the movement and a second preset threshold meet a first preset relation, the physical layer excludes all PSSCH candidate resources in the time slot from the perceived candidate resource set to be reported;

if the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the moved time slot and a second preset threshold meet a first preset relation, all PSSCH candidate resources on the time slot are excluded from a candidate resource set in a resource selection window by a Medium Access Control (MAC) layer;

if the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with a PSCCH (Primary synchronization control channel) associated with a PSSCH (primary synchronization channel) with a determined resource position in the time slot in the time domain, or the number of remaining available symbols of the PSSCH in the moved time slot and a second preset threshold meet a first preset relation, triggering the high-level resource reselection of the device;

if the time domain position of the PSFCH transmission is moved in the time slot, the time domain position of the PSFCH transmission after the movement is overlapped with the PSCCH related to the PSSCH with the determined resource position in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH in the time slot after the movement and a second preset threshold meet a first preset relation, triggering the equipment to transmit an SR or BSR;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH of the determined resource position in the time slot and a third preset threshold meet a first preset relation, and the time domain position of PSFCH transmission is moved in the time slot, the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a first preset relation, the time domain position of PSFCH transmission is moved in the time slot, and the PSCCH related to the time domain position of the PSFCH transmission after movement and the PSSCH with the determined resource position in the time slot is not overlapped in the time domain, the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH at the determined resource position in the time slot and a third preset threshold meet a second preset relation, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the moved PSFCH transmission is overlapped with the PSCCH related to the PSSCH at the determined resource position in the time slot in the time domain, the PSSCH transmission in the time slot is discarded;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the moved PSFCH transmission and the PSSCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, triggering the high-level resource reselection of the device;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the moved PSFCH transmission and the PSCCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, triggering equipment to transmit SR or BSR;

if the number of overlapped time domain symbols between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the PSFCH transmission after the movement is overlapped with the PSSCH associated with the PSSCH candidate resource in the time slot in the time domain, the physical layer excludes all PSSCH candidate resources on the time slot in a PSSCH initial candidate resource set;

if the number of overlapped time domain symbols between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the PSFCH transmission after the movement is overlapped with the PSSCH associated with the PSSCH candidate resource in the time slot in the time domain, the physical layer excludes all PSSCH candidate resources on the time slot in the sensed candidate resource set to be reported;

if the number of overlapped time domain symbols between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the moved PSFCH transmission is overlapped with the PSCCH associated with the PSSCH candidate resource in the time slot in the time domain, the medium access control MAC layer excludes all PSSCH candidate resources on the time slot in a candidate resource set in a resource selection window;

moving the time domain position of the PSFCH transmission between time slots and executing a first available rule;

excluding time slots in a resource pool when mapping PSFCH time domain resources, and executing a first available rule;

the slot stops the PSFCH transmission and executes the first available rule.

In an embodiment, the second available rule is radio resource control, RRC, configured, or pre-defined.

Principle 3: and if the idle time position in the channel occupation period and the PSSCH and the PSFCH in the time slot of the resource pool have time domain overlapping, determining a third available rule.

Illustratively, the third available rule includes at least one of:

if the time domain position of the PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with the PSCCH related to the PSSCH with the determined resource position in the time slot in the time domain, or the number of the residual available symbols of the PSSCH in the time slot after the movement and a second preset threshold meet a first preset relation, the PSSCH transmission in the time slot is discarded;

if the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with the PSSCH candidate resource in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH candidate resource in the time slot after the movement and a second preset threshold meet a first preset relation, the physical layer excludes all PSSCH candidate resources in the time slot from a PSSCH initial candidate resource set;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a first preset relation, the time domain position of PSFCH transmission is moved in the time slot, and the PSCCH related to the time domain position of the moved PSFCH transmission and the PSSCH with the determined resource position in the time slot is not overlapped in the time domain, the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the moved PSFCH transmission and the PSSCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, discarding the PSSCH transmission in the time slot;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH at the determined resource position in the time slot and a third preset threshold meet a second preset relation, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the PSFCH transmission after movement is overlapped with the PSCCH related to the PSSCH at the determined resource position in the time slot in the time domain, triggering the high-level resource reselection of the equipment;

if the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH at the determined resource position in the time slot and a third preset threshold meet a second preset relation, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the PSFCH transmission after movement is overlapped with the PSCCH related to the PSSCH at the determined resource position in the time slot in the time domain, triggering the equipment to transmit SR or BSR;

the slot stops the PSFCH transmission and the first available rule is executed.

The first available rule mentioned in the third available rule is the same as the first available rule in the above principle 1, and for brevity, the description thereof is omitted here.

In an embodiment, for moving the time domain position of the PSFCH transmission within the timeslot as mentioned in principle 2 and principle 3 above, the method includes: the time slot comprises L symbols, the corresponding symbol indexes of the L symbols are from S to S + L-1, the index of the symbol with the minimum index in the overlapped symbols between the idle time position in the channel occupation period and the L symbols in the time slot of the resource pool is Q, the indexes of the available symbols in the time slot are from S to Q-1, and the last symbol index allowed to be used for PSFCH transmission in the time slot is Q-1;

the number of symbols moved by the PSFCH symbol in the time slot is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is Q-1;

the number of the symbols moved by the QPSFCH symbols in the time slot is P-Q +1, the second symbol index of the PSFCH transmission before the movement is P, and the second symbol index of the PSFCH transmission after the movement is S +1;

the number of symbols moved in the time slot by the PSFCH symbols is P-Q +1, the second symbol index of the PSFCH transmission before the movement is P, and the second symbol index of the PSFCH transmission after the movement is located between S +1 and Q-1;

if Q-S is larger than or equal to a fourth preset threshold, the number of the symbols moved in the time slot by the PSFCH symbol is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is Q-1;

if Q-S is larger than or equal to a fourth preset threshold, the number of the symbols moved in the time slot by the PSFCH symbol is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is S +1;

if Q-S is larger than or equal to a fourth preset threshold, the number of symbols moved in the time slot by the PSFCH symbol is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is positioned between S +1 and Q-1; for example, the second symbol index of the shifted PSFCH transmission is S +2, or S +3, or S +4;

and if the Q-S is smaller than a fourth preset threshold, moving the time domain position of the PSFCH transmission between time slots according to configuration, or pre-configuring or pre-defining, or excluding the time slots in the resource pool when mapping the PSFCH time domain resources or stopping the PSFCH transmission by the time slots.

In one embodiment, Q > S +1; alternatively, Q > S +2.

In an embodiment, after shifting the time domain position of the PSFCH transmission between slots as mentioned in principle 2 and principle 3, the time domain position of the PSFCH transmission is the index symbol of the PSFCH transmission before shifting plus 12 or 14; or the time-domain position of the PSFCH transmission is the index symbol of the PSFCH transmission before the shift minus 12 or 14.

In an embodiment, the puncturing transmission refers to that when a physical layer maps resources in a slot, the influence of idle period (namely idle time in a channel occupation period) is not considered, and if it is judged that some symbols in the slot, which are mapped with SL data, are overlapped with the idle period, the overlapped symbols do not send any SL data, and the transmitted data may be incomplete.

Rate matching transmission refers to that when a physical layer maps SL data on physical resources, the influence of idle period is considered, symbols overlapped with the idle period can be deducted from symbols of the slot mapped SL data for data mapping, and then complete data is sent.

Step 2: and determining the resource position and the transmission mode of the channel according to the available rules.

And S130, transmitting data on the resource position according to the transmission mode.

In one embodiment, the data transmitted may be a channel or signal (including but not limited to S-SSB, PSCCH, PSSCH, PSFCH).

Some examples are provided below to explain "determining resource location and transmission mode of a channel according to resource pool configuration information and semi-static channel occupancy information".

Example 1

Fig. 9 is a diagram illustrating a first method for determining resource locations and transmission modes of a channel according to an embodiment. As shown in fig. 9, the idle time position in the channel occupying period overlaps the PSSCH in the slot of the resource pool by 3 symbols, and the number of PSSCH symbols remaining in the slot is 10.

Assuming that the first preset threshold is 4, the number of symbols 3 overlapping the idle time position in the channel occupation period and the PSSCH in the slot of the resource pool and the first preset threshold 4 satisfy a first preset relationship, that is, 3 is less than 4, when the PSSCH on the slot is scheduled to transmit in the slot, the puncturing transmission is performed on the overlapped 3 symbols.

Similarly, assuming that the second preset threshold is 8, and the number 10 of the PSSCH symbols remaining in the slot and the second preset threshold 8 satisfy the second preset relationship, that is, 10 is greater than 8, then the PSSCH scheduled in the slot is transmitted in the slot, and the puncturing transmission is performed on the overlapped 3 symbols.

Example two

Fig. 10 is a diagram illustrating resource locations and transmission manners of a second determination channel according to an embodiment. As shown in fig. 10, the idle time position in the channel occupancy period overlaps the psch in the slot of the resource pool by 8 symbols, and the number of psch symbols remaining in the slot is 5.

Assuming that the first preset threshold is 4, the number of symbols 8 overlapping the idle time position in the channel occupation period with the PSSCH in the slot of the resource pool and the first preset threshold 4 satisfy a second preset relationship, that is, 8 is greater than 4, when the PSSCH scheduled on the slot is transmitted in the slot, the PSSCH is discarded.

Similarly, assuming that the second preset threshold is 8, the number of PSSCH symbols remaining in the slot 5 and the second preset threshold 8 satisfy the first preset relationship, that is, 5 is less than 8, then the PSSCH scheduled on the slot is discarded when the slot transmits.

Example three

Fig. 11 is a diagram illustrating resource locations and transmission manners of a third determination channel according to an embodiment. As shown in fig. 11, the idle time position in the channel occupying period overlaps the PSSCH in the slot of the resource pool by 3 symbols, and the number of PSSCH symbols remaining in the slot is 7.

Assuming that the first preset threshold is 4, and the number of symbols 3 overlapping the PSSCH in the slot of the resource pool at the idle time position in the channel occupying period and the first preset threshold 4 satisfy a first preset relationship, that is, 3 is less than 4, when the PSSCH in the slot is scheduled to transmit in the slot, the puncturing transmission is performed on the overlapped 3 symbols, and the resources of the PSFCH in the slot are not affected.

Example four

When the free time position in the channel occupying period has time domain overlap with the second symbol of the PSFCH transmission in the slot of the resource pool and does not have time domain overlap with the first symbol of the PSFCH transmission, the time domain position of the whole PSFCH transmission is shifted by 1 symbol (for example, shifted by 1 symbol to the left), and the index of the second symbol of the PSFCH transmission at this time is startSLsymbols + length slsymbols-2-1.

Fig. 12 is a schematic diagram illustrating a resource location and a transmission manner of a fourth determination channel according to an embodiment. As shown in fig. 12, the idle time position in the channel occupying period overlaps with the second symbol of the PSFCH transmission and the last symbol of the slot in the slot of the resource pool in the time domain, startSLsymbols =0, length slsymbols =14, at this time, in order to ensure that the PSFCH is not affected, all symbols of the PSFCH transmission are shifted to the left by one symbol in the slot, and the index of the second symbol of the PSFCH transmission is updated from 12 to 11.

Example five

When the free time position in the channel occupation period has time domain overlap with the first symbol of the PSFCH transmission in the slot of the resource pool and does not have time domain overlap with the PSSCH and the gap symbol between the PSSCH and the PSFCH, the time domain position of the whole PSFCH transmission is shifted by 2 symbols in slot (for example, shifted by 2 symbols to the left), and the index of the second symbol of the PSFCH transmission is startSLsymbols + length slsymbols-2-2.

Fig. 13 is a diagram illustrating a resource location and a transmission manner of a fifth determination channel according to an embodiment. As shown in fig. 13, there is time domain overlap between the idle time position in the channel occupation period and the first symbol, the second symbol, and the last symbol of the PSFCH transmission in the slot of the resource pool, where startSLsymbols =0, length slsymbols =14, at this time, in order to ensure that the PSFCH is not affected, all symbols of the PSFCH transmission are shifted to the left by two symbols in the slot, and the index of the second symbol of the PSFCH transmission is updated from 12 to 10.

Example six

When the free time position in the channel occupying period has time domain overlap with the first symbol of the PSFCH transmission in the slot of the resource pool and the gap symbol between the PSSCH and the PSFCH, and does not have time domain overlap with the PSSCH symbol, the time domain position of the whole PSFCH transmission is shifted in slot by 3 symbols (for example, shifted to the left by 3 symbols), and the index of the second symbol of the PSFCH transmission at this time is startslmolecules + length slmolecules-2-3.

Fig. 14 is a diagram illustrating a resource location and a transmission manner of a sixth determination channel according to an embodiment. As shown in fig. 14, there is time domain overlap between the idle time position in the channel occupation period and the first symbol and the second symbol of the PSFCH transmission in the slot of the resource pool, and three symbols, namely, the first symbol and the second symbol of the PSFCH transmission and the gap symbol between the PSSCH and the PSFCH, where startSLsymbols =0 and length hsslsymbols =14, in this case, in order to ensure that the PSFCH is not affected, all symbols of the PSFCH transmission are shifted to the left by three symbols in the slot, and the index of the second symbol of the PSFCH transmission is updated from 12 to 9.

Example seven

Fig. 15 is a diagram illustrating a resource location and a transmission manner of a seventh determination channel according to an embodiment. As shown in fig. 15, the idle time position in the channel occupying period overlaps with the last 5 symbols in the slot of the resource pool in the time domain, startSLsymbols =0, length slsymbols =14, and the number M of symbols where the idle time position in the channel occupying period overlaps with the PSCCH/PSCCH in the slot is 1. To ensure that the PSFCH is unaffected, all symbols transmitted by the PSFCH are shifted left by 4 symbols in the slot, and the index of the second symbol transmitted by the PSFCH is updated from 12 to 8.

Example eight

Fig. 16 is a diagram illustrating an eighth method for determining resource locations and transmission manners of a channel according to an embodiment. As shown in fig. 16, when the time domain overlap exists between the idle time position in the channel occupation period and the PSFCH in the slot of the resource pool and the PSFCH period is greater than 1slot, the PSFCH resource in the current slot is disabled, and the corresponding PSFCH resource is set in the slot of the current slot index +1 in the resource pool.

Alternatively, fig. 17 is a schematic diagram of a ninth method for determining resource locations and transmission manners of channels according to an embodiment. As shown in fig. 17, when the idle time position in the channel occupation period and the PSFCH in the slot of the resource pool have time domain overlap and the PSFCH period is greater than 1slot, the PSFCH resource on the current slot is disabled, and the corresponding PSFCH resource is set on the slot of the current slot index-1 in the resource pool.

Fig. 18 is a schematic structural diagram of a data transmission apparatus according to an embodiment, which may be configured in a communication node, as shown in fig. 18, the apparatus includes: an acquisition module 200, a determination module 210, and a transmission module 220.

An obtaining module 200 configured to obtain resource pool configuration information and semi-static channel occupancy information;

the determining module 210 is configured to determine a resource location and a transmission mode of a channel according to the resource pool configuration information and the semi-static channel occupancy information, where the channel is a data channel or a feedback channel;

the transmission module 220 is configured to transmit data at the resource location according to the transmission mode.

The data transmission device provided in this embodiment is a data transmission method for implementing the above embodiments, and the implementation principle and technical effect of the data transmission device provided in this embodiment are similar to those of the above embodiments, and are not described herein again.

In one embodiment, the information of the trigger signal in the channel occupying period includes at least one of: the time domain position of the trigger signal, the time domain length of the trigger signal.

In one embodiment, the starting position of the trigger signal is the sum of the starting position of the channel occupying period and the second offset amount offset2 of the trigger signal.

In one embodiment, the time domain length of the trigger signal is N symbols.

In one embodiment, the information of idle time in the channel occupying period comprises at least one of: the time domain position of the idle time, and the time domain length of the idle time.

In one embodiment, the end position of the idle time is the sum of the end position of the channel occupying period and the third offset3 of the idle time; or, the starting position of the idle time is the sum of the ending position of the channel occupying period and the third offset3 of the idle time; or the starting position of the idle time is the sum of the starting position of the channel occupation period and a third offset3 of the idle time; alternatively, the time domain location of the idle time is a predefined time domain location.

In one embodiment, the semi-static channel occupancy information includes at least one of: the frequency domain resource position of the trigger signal in the channel occupation period and the format of the trigger signal in the channel occupation period.

In an embodiment, the frequency domain resource position of the trigger signal is a set of continuous physical resource blocks PRB within a configured or preconfigured or predefined resource block set RB set, or a set of discrete PRBs, or all PRBs on one interlace, or a part of PRBs on one interlace;

the format of the trigger signal comprises a physical side link control channel PSCCH, a physical side link shared channel PSSCH, a physical side link feedback channel PSFCH, a channel state information reference signal CSI-RS, a side link synchronization signal block S-SSB, a predefined sequence and a cyclic prefix extension CPE.

In an embodiment, the time domain position of the trigger signal overlaps with the time domain resource position of the data, and the overlapping time domain resource position does not transmit the trigger signal.

In an embodiment, the determining module 210 is configured to determine an available rule of the channel according to the resource pool configuration information and the semi-static channel occupancy information; and determining the resource position and the transmission mode of the channel according to the available rules.

In one embodiment, the semi-static channel occupancy information includes a channel occupancy period and an offset1 of the channel occupancy period; the available rules include a first available rule, a second available rule, and a third available rule;

the determining module 210 is configured to set that a time domain overlap exists between an idle time position in a channel occupation period and a PSSCH in a time slot of a resource pool, and determine a first available rule; the idle time position in the channel occupation period only has time domain overlapping with PSFCH in the time slot of the resource pool, and a second available rule or a third available rule is determined; and determining a third available rule by the fact that the idle time position in the channel occupation period has time domain overlapping with the PSSCH and the PSFCH in the time slot of the resource pool.

In an embodiment, the first available rule comprises at least one of:

the number of time domain symbols overlapped between an idle time position in a channel occupation period and a PSSCH of a determined resource position in a time slot and a first preset threshold meet a first preset relation, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a first preset relation, the PSCCH related to the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot is not overlapped in the time domain, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and the first preset threshold meet a second preset relation, or the idle time position in the channel occupation period and the PSSCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, and PSSCH transmission in the time slot is discarded;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a second preset relation, or the idle time position in the channel occupation period and the PSSCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, and the high-level resource reselection of the equipment is triggered;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a second preset relation, or the idle time position in the channel occupation period and the PSCCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, and equipment is triggered to transmit a scheduling request SR or a buffer status report BSR;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a first preset threshold meet a second preset relation, or the idle time position in the channel occupation period and the PSCCH resource associated with the candidate PSSCH resource in the time slot are overlapped on the time domain, and all PSSCH candidate resources on the time slot are excluded from a PSSCH initial candidate resource set by a physical layer;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a first preset threshold meet a second preset relationship, or the idle time position in the channel occupation period and the PSSCH resource associated with the candidate PSSCH resource in the time slot are overlapped in the time domain, and the physical layer excludes all PSSCH candidate resources on the time slot from the sensed candidate resource set to be reported;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a first preset threshold meet a second preset relation, or the idle time position in the channel occupation period and the PSCCH resource associated with the candidate PSSCH resource in the time slot are overlapped on the time domain, and all PSSCH candidate resources on the time slot are excluded from a candidate resource set in a resource selection window by a Medium Access Control (MAC) layer;

the number of the residual PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot, satisfy a second preset relationship, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a second preset relationship, the PSCCHs associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot are not overlapped in the time domain, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of the residual PSSCH available symbols and a second preset threshold except for the symbols overlapped between the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot meet a first preset relation, or the PSCCH related to the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, and the PSSCH transmission in the time slot is discarded;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, meet a first preset relationship, or the PSCCH associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, and the high-level resource reselection of the equipment is triggered;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, meet a first preset relationship, or the idle time position in the channel occupation period and the PSSCH associated with the PSSCH with the determined resource position in the time slot are overlapped in a time domain, and the triggering device transmits SR or BSR;

the number of the residual PSSCH available symbols except for the overlapped symbols between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a second preset threshold in the time slot meet a first preset relation, or the idle time position in the channel occupation period and the PSSCH resources associated with the candidate PSSCH resources in the time slot are overlapped in the time domain, and all PSSCH candidate resources on the time slot are excluded from a PSSCH initial candidate resource set by a physical layer;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSSCH resources associated with the candidate PSSCH resources in the time slot are overlapped in the time domain, and the physical layer excludes all PSSCH candidate resources on the time slot from the sensed candidate resource set to be reported;

the number of the residual PSSCH available symbols except for the overlapped symbols between the idle time position in the channel occupying period and the PSSCH with the determined resource position in the time slot and a second preset threshold in the time slot meet a first preset relation, or the idle time position in the channel occupying period and the PSSCH resources associated with the candidate PSSCH resources in the time slot are overlapped in the time domain, and the MAC layer excludes all the PSSCH candidate resources on the time slot from the candidate resource set in the resource selection window.

In an embodiment, the second available rule comprises at least one of:

moving a time domain location of a PSFCH transmission within a time slot;

shifting the time domain position of the PSFCH transmission between time slots;

excluding time slots in the resource pool when mapping the PSFCH time domain resources;

the slot stops the PSFCH transmission.

In an embodiment, the second available rule is radio resource control, RRC, configured, or pre-configured, or predefined.

In an embodiment, the third available rule comprises at least one of:

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission does not overlap with the PSCCH related to the PSSCH with the determined resource position in the time slot in the time domain, the number of the residual available symbols of the PSSCH in the moved time slot and a second preset threshold meet a second preset relation, and the residual PSSCH symbols in the time slot are allowed to be used for punching transmission or rate matching transmission;

moving the time domain position of PSFCH transmission in the time slot, wherein the number of the residual available symbols of the PSSCH in the moved time slot and a second preset threshold meet a second preset relation, and the residual PSSCH symbols in the time slot are allowed to be used for punching transmission or rate matching transmission;

moving the time domain position of PSFCH transmission in the time slot, overlapping the time domain position of the moved PSFCH transmission with a PSCCH (pseudo random channel) associated with a PSSCH (primary synchronization channel) with a determined resource position in the time slot, or enabling the number of remaining available symbols of the PSSCH in the moved time slot and a second preset threshold to meet a first preset relation, and discarding the PSSCH transmission in the time slot;

moving the time domain position of PSFCH transmission in a time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in a time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the moved time slot and a second preset threshold meet a first preset relation, and a physical layer excludes all PSSCH candidate resources on the time slot in a PSSCH initial candidate resource set;

moving the time domain position of PSFCH transmission in a time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in a time domain, or the number of remaining available symbols of the PSSCH candidate resources in the moved time slot and a second preset threshold meet a first preset relation, and a physical layer excludes all PSSCH candidate resources on the time slot from a perceived candidate resource set to be reported;

moving the time domain position of PSFCH transmission in a time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in a time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the moved time slot and a second preset threshold meet a first preset relation, and a Medium Access Control (MAC) layer excludes all PSSCH candidate resources on the time slot from a candidate resource set in a resource selection window;

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH (Primary synchronization control channel) associated with a PSSCH (primary synchronization channel) with a determined resource position in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH in the moved time slot and a second preset threshold meet a first preset relation, and triggering the high-level resource reselection of the equipment;

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH (Primary synchronization control channel) associated with a PSSCH (primary synchronization channel) with a determined resource position in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH in the moved time slot and a second preset threshold meet a first preset relation, and triggering equipment to transmit SR or BSR;

the number of time domain symbols overlapped between an idle time position in a channel occupation period and a PSSCH of a determined resource position in a time slot and a third preset threshold meet a first preset relation, the time domain position of PSFCH transmission is moved in the time slot, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between an idle time position in a channel occupation period and a PSSCH of a determined resource position in a time slot and a third preset threshold meet a first preset relation, the time domain position of PSFCH transmission is moved in the time slot, the PSCCH related to the time domain position of the moved PSFCH transmission and the PSSCH of the determined resource position in the time slot does not overlap in the time domain, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between an idle time position in a channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a second preset relation, or the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with the PSCCH related to the PSSCH with the determined resource position in the time slot in the time domain, and the PSSCH transmission in the time slot is discarded;

the number of time domain symbols overlapped between an idle time position in a channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a second preset relation, or the time domain position of PSFCH transmission is moved in the time slot, and the PSCCH related to the PSSCH with the determined resource position in the time slot is overlapped in the time domain after the movement, so that the high-level resource reselection of the equipment is triggered;

the number of time domain symbols overlapped between an idle time position in a channel occupation period and a PSSCH with a determined resource position in a time slot and a third preset threshold meet a second preset relation, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the moved PSFCH transmission and the PSCCH related to the PSSCH with the determined resource position in the time slot are overlapped in the time domain, so that the equipment is triggered to transmit SR or BSR;

the number of overlapped time domain symbols between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with the PSSCH associated with the PSSCH candidate resource in the time slot in the time domain, and all PSSCH candidate resources on the time slot are excluded from a PSSCH initial candidate resource set by a physical layer;

the number of overlapped time domain symbols between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the PSFCH transmission after the movement is overlapped with the PSSCH associated with the PSSCH candidate resource in the time slot in the time domain, and all PSSCH candidate resources on the time slot are excluded from the sensed candidate resource set to be reported by the physical layer;

the number of overlapped time domain symbols between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with the PSSCH associated with the PSSCH candidate resource in the time slot in the time domain, and all PSSCH candidate resources on the time slot are excluded from a candidate resource set in a resource selection window by a Medium Access Control (MAC) layer;

the slot stops the PSFCH transmission and the first available rule is executed.

In one embodiment, moving the time domain location of the PSFCH transmission within the time slot comprises:

the time slot comprises L symbols, the corresponding symbol indexes of the L symbols are from S to S + L-1, the index of the symbol with the minimum index in the overlapped symbols between the idle time position in the channel occupation period and the L symbols in the time slot of the resource pool is Q, the indexes of the available symbols in the time slot are from S to Q-1, and the last symbol index allowed to be used for PSFCH transmission in the time slot is Q-1;

the number of the QPSFCH symbols moving in the time slot is P-Q +1, the second symbol index of the PSFCH transmission before moving is P, and the second symbol index of the PSFCH transmission after moving is S +1;

the number of symbols of the PSFCH symbols moving in the time slot is P-Q +1, the second symbol index of the PSFCH transmission before moving is P, and the second symbol index of the PSFCH transmission after moving is located between S +1 and Q-1;

Q-S is larger than or equal to a fourth preset threshold, the number of symbols moved by the PSFCH symbol in the time slot is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is Q-1;

Q-S is larger than or equal to a fourth preset threshold, the number of symbols moved by the PSFCH symbol in the time slot is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is S +1;

Q-S is larger than or equal to a fourth preset threshold, the number of symbols moved in the time slot by the PSFCH symbols is P-Q +1, the second symbol index of the PSFCH transmission before the movement is P, and the second symbol index of the PSFCH transmission after the movement is located between S +1 and Q-1;

and the Q-S is smaller than a fourth preset threshold, and according to configuration, pre-configuration or pre-definition, the time domain position of PSFCH transmission is moved among time slots, or the time slots in the resource pool are excluded or the time slots stop the PSFCH transmission when the PSFCH time domain resources are mapped.

In an embodiment, after the time domain position of the PSFCH transmission is moved between the time slots, the time domain position of the PSFCH transmission is the index symbol of the PSFCH transmission before the movement plus 12 or 14; or the time domain position of the PSFCH transmission is the index symbol of the PSFCH transmission before the shift minus 12 or 14.

An embodiment of the present application further provides a communication node, including: a processor for implementing a method as provided in any of the embodiments of the present application when the computer program is executed. Specifically, the communication node may be a user equipment provided in any embodiment of the present application, and the present application does not specifically limit this.

Illustratively, the following embodiments provide a schematic structural diagram of a communication node being a UE and a base station (or a higher-level entity), respectively.

Fig. 19 is a schematic structural diagram of a UE according to an embodiment, which may be implemented in various forms, and the UE in this application may include, but is not limited to, a mobile terminal Device such as a mobile phone, a smart phone, a notebook computer, a Digital broadcast receiver, a Personal Digital Assistant (PDA), a tablet computer (PAD), a Portable Multimedia Player (PMP), a navigation Device, a vehicle-mounted terminal Device, a vehicle-mounted display terminal, a vehicle-mounted electronic rear view mirror, and a fixed terminal Device such as a Digital Television (TV), a desktop computer, and the like.

As shown in fig. 19, the UE 50 may include a wireless communication unit 51, an Audio/Video (a/V) input unit 52, a user input unit 53, a sensing unit 54, an output unit 55, a memory 56, an interface unit 57, a processor 58, and a power supply unit 59, and the like. Fig. 19 shows a UE including various components, but it is understood that not all of the illustrated components are required to be implemented. More or fewer components may alternatively be implemented.

In the present embodiment, the wireless communication unit 51 allows radio communication between the UE 50 and the UE or a base station or a network. The a/V input unit 52 is arranged to receive audio or video signals. The user input unit 53 may generate key input data to control various operations of the UE 50 according to commands input by the user. The sensing unit 54 detects a current state of the UE 50, a position of the UE 50, presence or absence of a touch input by a user to the UE 50, an orientation of the UE 50, acceleration or deceleration movement and direction of the UE 50, and the like, and generates a command or signal for controlling an operation of the UE 50. The interface unit 57 serves as an interface through which at least one external device is connected with the UE 50. The output unit 55 is configured to provide output signals in a visual, audio, and/or tactile manner. The memory 56 may store software programs or the like for processing and controlling operations performed by the processor 58, or may temporarily store data that has been or will be output. The memory 56 may include at least one type of storage medium. Also, the UE 50 may cooperate with a network storage device that performs the storage function of the memory 56 through a network connection. The processor 58 generally controls the overall operation of the UE 50. The power supply unit 59 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the processor 58.

The processor 58 executes the program stored in the memory 56 to execute at least one functional application and data processing, for example, to implement the methods provided by the embodiments of the present application.

Fig. 20 is a schematic structural diagram of a base station (or a higher-level entity) according to an embodiment, and as shown in fig. 20, the base station includes a processor 60, a memory 61, and a communication interface 62; the number of the processors 60 in the base station may be one or more, and one processor 60 is taken as an example in fig. 20; the processor 60, the memory 61 and the communication interface 62 in the base station may be connected by a bus or other means, and the bus connection is exemplified in fig. 20. A bus represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures.

The memory 61, as a computer-readable storage medium, may be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present application. The processor 60 executes at least one functional application of the base station and data processing by executing software programs, instructions and modules stored in the memory 61, i.e. implements the above-mentioned method.

The memory 61 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 61 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 61 may include memory located remotely from processor 60, which may be connected to a base station through a network. Examples of such networks include, but are not limited to, the internet, intranets, networks, mobile communication networks, and combinations thereof.

The communication interface 62 may be configured for the reception and transmission of data.

Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method provided in any of the embodiments of the present application.

The computer storage media of the embodiments of the present application may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer-readable storage medium may be, for example but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. Computer-readable storage media include (a non-exhaustive list): an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (EPROM), a flash Memory, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, radio Frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + +, ruby, go, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of Network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the internet using an internet service provider).

It will be clear to a person skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a car mounted mobile station.

In general, the various embodiments of the application may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.

Embodiments of the application may be implemented by a data processor of a mobile device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read Only Memory (ROM), random Access Memory (RAM), optical storage devices and systems (digital versatile disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), programmable logic devices (FPGAs), and processors based on a multi-core processor architecture.

Claims

1. A method of data transmission, comprising:

determining a resource position and a transmission mode of a channel according to the resource pool configuration information and the semi-static channel occupation information, wherein the channel is a data channel or a feedback channel;

2. The method of claim 1, wherein the resource pool configuration information comprises at least one of: time domain resource configuration parameters of a side link SL resource pool, frequency domain sub-band resource configuration parameters of the SL resource pool, control channel configuration parameters of the SL resource pool, data channel configuration parameters of the SL resource pool, feedback channel configuration parameters of the SL resource pool, and symbol configuration parameters in a time slot of the SL resource pool.

3. The method of claim 1, wherein the semi-static channel occupancy information comprises at least one of: the information of the trigger signal in the channel occupying period, the first offset1 of the channel occupying period, the information of the idle time in the channel occupying period, and the like.

4. The method of claim 3, wherein the information of the trigger signal in the channel occupying period comprises at least one of: the time domain position of the trigger signal, the time domain length of the trigger signal.

5. The method according to claim 4, wherein the starting position of the trigger signal is the sum of the starting position of the channel occupying period and a second offset2 of the trigger signal.

6. The method of claim 4, wherein the time domain length of the trigger signal is N symbols.

7. The method of claim 3, wherein the information of idle time in the channel occupying period comprises at least one of: the time domain position of the idle time, and the time domain length of the idle time.

8. The method according to claim 7, wherein the end position of the idle time is the sum of the end position of the channel occupying period and a third offset, offset3, of the idle time; or, the starting position of the idle time is the sum of the ending position of the channel occupying period and a third offset3 of the idle time; or the starting position of the idle time is the sum of the starting position of the channel occupying period and a third offset3 of the idle time; or the time domain position of the idle time is a predefined time domain position.

9. The method of claim 1, wherein the semi-static channel occupancy information comprises at least one of: the frequency domain resource position of the trigger signal in the channel occupying period and the format of the trigger signal in the channel occupying period.

10. The method of claim 9, wherein the frequency-domain resource locations of the trigger signal are a set of consecutive Physical Resource Blocks (PRBs) within a configured or pre-defined set of resource blocks (RB sets), or a set of discrete PRBs, or all PRBs on one interlace, or part of PRBs on one interlace;

11. The method of claim 9, wherein the frequency domain resource location of the trigger signal is orthogonal to the frequency domain resource of the PSFCH; and the frequency domain resource position of the trigger signal is orthogonal to the frequency domain resource of the S-SSB.

12. The method of claim 4, wherein a time domain position of the trigger signal overlaps with a time domain resource position of the data, and wherein the overlapping time domain resource position does not transmit the trigger signal.

13. The method of claim 1, wherein the determining resource locations and transmission modes of channels according to the resource pool configuration information and the semi-static channel occupancy information comprises:

determining an available rule of the channel according to the resource pool configuration information and the semi-static channel occupation information;

and determining the resource position and the transmission mode of the channel according to the available rule.

14. The method of claim 13, wherein the semi-static channel occupancy information comprises a channel occupancy period and an offset1 of the channel occupancy period; the available rules include a first available rule, a second available rule, and a third available rule;

the determining the available rule of the channel according to the resource pool configuration information and the semi-static channel occupation information includes:

the idle time position in the channel occupation period only has time domain overlapping with PSSCH in the time slot of the resource pool, and the first available rule is determined;

determining the second available rule or the third available rule by only overlapping the idle time position in the channel occupation period with the time domain of the PSFCH in the time slot of the resource pool;

and determining the third available rule when the idle time position in the channel occupying period and the PSSCH and PSFCH in the time slot of the resource pool have time domain overlapping.

15. The method of claim 14, wherein the first available rule comprises at least one of:

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH of the determined resource position in the time slot and a first preset threshold meet a first preset relation, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between the idle time position in the channel occupying period and the PSSCH at the determined resource position in the time slot and a first preset threshold meet a first preset relation, the PSCCHs associated with the idle time position in the channel occupying period and the PSSCH at the determined resource position in the time slot are not overlapped in the time domain, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a second preset relation, or the PSCCH associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, and PSSCH transmission in the time slot is discarded;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a second preset relation, or the PSCCH associated with the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot is overlapped in the time domain, and the high-level resource reselection of the equipment is triggered;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a first preset threshold meet a second preset relationship, or the idle time position in the channel occupation period and the PSCCH associated with the PSSCH with the determined resource position in the time slot are overlapped in the time domain, and equipment is triggered to transmit a scheduling request SR or a buffer status report BSR;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a first preset threshold meet a second preset relationship, or the idle time position in the channel occupation period and the PSCCH resource associated with the candidate PSSCH resource in the time slot are overlapped in the time domain, and all PSSCH candidate resources on the time slot are excluded from a PSSCH initial candidate resource set by a physical layer;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a first preset threshold meet a second preset relationship, or the idle time position in the channel occupation period and the PSCCH resource associated with the candidate PSSCH resource in the time slot are overlapped in the time domain, and all PSSCH candidate resources on the time slot are excluded from the sensed candidate resource set to be reported by the physical layer;

the number of time domain symbols overlapped between the idle time position in the channel occupying period and the PSSCH candidate resource in the time slot and a first preset threshold meet a second preset relation, or the idle time position in the channel occupying period and the PSCCH resource associated with the candidate PSSCH resource in the time slot are overlapped in the time domain, and all PSSCH candidate resources on the time slot are excluded from a candidate resource set in a resource selection window by a Medium Access Control (MAC) layer;

the number of the remaining PSSCH available symbols in the time slot, except for the overlapped symbols between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, and a second preset threshold satisfy a second preset relationship, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of the remaining PSSCH available symbols except for the overlapped symbols between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a second preset threshold meet a second preset relationship, the PSCCH related to the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot does not overlap in a time domain, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the overlapped symbols between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, meet a first preset relationship, or the idle time position in the channel occupation period and the PSSCH associated with the PSSCH with the determined resource position in the time slot are overlapped in a time domain, and PSSCH transmission in the time slot is discarded;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the overlapped symbols between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, meet a first preset relationship, or the idle time position in the channel occupation period and the PSSCH associated with the PSSCH with the determined resource position in the time slot are overlapped in a time domain, so as to trigger the high-level resource reselection of the equipment;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSCCH associated with the PSSCH with the determined resource position in the time slot are overlapped in a time domain, and the device is triggered to transmit SR or BSR;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the overlapped symbols between the idle time position in the channel occupation period and the PSSCH at the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSCCH resources associated with the candidate PSSCH resources in the time slot are overlapped in the time domain, and the physical layer excludes all PSSCH candidate resources on the time slot in a PSSCH initial candidate resource set;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the symbols overlapped between the idle time position in the channel occupation period and the PSSCH at the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSCCH resources associated with the candidate PSSCH resources in the time slot are overlapped in the time domain, and the physical layer excludes all PSSCH candidate resources on the time slot from the sensed candidate resource set to be reported;

the number of the remaining PSSCH available symbols and a second preset threshold, except for the overlapped symbols between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot, satisfy a first preset relationship, or the idle time position in the channel occupation period and the PSCCH resources associated with the candidate PSSCH resources in the time slot overlap in the time domain, and the MAC layer excludes all PSSCH candidate resources on the time slot from the candidate resource set in the resource selection window.

16. The method of claim 14, wherein the second available rule comprises at least one of:

moving a time domain location of a PSFCH transmission within the time slot;

shifting the time domain position of the PSFCH transmission between time slots;

excluding the time slots in the resource pool when mapping PSFCH time domain resources;

the slot stops the PSFCH transmission.

17. The method according to claim 16, wherein the second available rule is radio resource control, RRC, configured, or pre-defined.

18. The method of claim 14, wherein the third available rule comprises at least one of:

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission does not overlap with the PSCCH related to the PSSCH with the determined resource position in the time slot in the time domain, the number of the residual available symbols of the PSSCH in the time slot after moving and a second preset threshold meet a second preset relation, and the residual PSSCH symbols in the time slot are allowed to be used for punching transmission or rate matching transmission;

moving the time domain position of PSFCH transmission in the time slot, wherein the number of the remaining available symbols of PSSCH in the time slot after the movement and a second preset threshold meet a second preset relationship, and the remaining PSSCH symbols in the time slot are allowed to be used for punching transmission or rate matching transmission;

moving the time domain position of PSFCH transmission in the time slot, overlapping the time domain position of the moved PSFCH transmission with a PSCCH associated with a PSSCH with a determined resource position in the time slot in a time domain, or enabling the number of remaining available symbols of the PSSCH in the time slot after moving and a second preset threshold to meet a first preset relation, and discarding the PSSCH transmission in the time slot;

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the time slot after moving and a second preset threshold meet a first preset relation, and the physical layer excludes all PSSCH candidate resources on the time slot in a PSSCH initial candidate resource set;

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the time slot after the movement and a second preset threshold meet a first preset relation, and a physical layer excludes all PSSCH candidate resources on the time slot from a sensed candidate resource set to be reported;

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH associated with PSSCH candidate resources in the time slot in the time domain, or the number of the remaining available symbols of the PSSCH candidate resources in the time slot after moving and a second preset threshold meet a first preset relation, and a Medium Access Control (MAC) layer excludes all PSSCH candidate resources on the time slot in a candidate resource set in a resource selection window;

moving the time domain position of PSFCH transmission in the time slot, wherein the time domain position of the moved PSFCH transmission is overlapped with a PSCCH (Primary synchronization control channel) associated with a PSSCH (primary synchronization channel) with a determined resource position in the time slot in a time domain, or the number of remaining available symbols of the PSSCH in the moved time slot and a second preset threshold meet a first preset relation, and triggering equipment high-level resource reselection;

moving the time domain position of PSFCH transmission in the time slot, overlapping the time domain position of the moved PSFCH transmission with a PSCCH (pseudo random channel) associated with a PSSCH (primary synchronization channel) with a determined resource position in the time slot, or enabling the number of remaining available symbols of the PSSCH in the time slot after the movement and a second preset threshold to meet a first preset relation, and triggering equipment to transmit SR or BSR;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH of the determined resource position in the time slot and a third preset threshold meet a first preset relation, the time domain position of PSFCH transmission is moved in the time slot, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between an idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a first preset relation, the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission and the PSCCH related to the PSSCH with the determined resource position in the time slot are not overlapped in the time domain, and the PSSCH of the time slot is allowed to be used for punching transmission or rate matching transmission;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the moved time domain position of the PSFCH transmission is overlapped with the PSCCH related to the PSSCH with the determined resource position in the time slot in the time domain, and the PSSCH transmission in the time slot is discarded;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH of the determined resource position in the time slot and a third preset threshold meet a second preset relation, or the time domain position of PSFCH transmission is moved in the time slot, and the time domain position of the moved PSFCH transmission is overlapped with the PSCCH related to the PSSCH of the determined resource position in the time slot in the time domain, so that the high-level resource reselection of the equipment is triggered;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH with the determined resource position in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the moved time domain position of PSFCH transmission and the PSCCH related to the PSSCH with the determined resource position in the time slot are overlapped in the time domain, and equipment is triggered to transmit SR or BSR;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with the PSCCH associated with the PSSCH candidate resource in the time slot in the time domain, and all PSSCH candidate resources on the time slot are excluded from a PSSCH initial candidate resource set by a physical layer;

the number of overlapped time domain symbols between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with the PSCCH associated with the PSSCH candidate resource in the time slot in the time domain, and all PSSCH candidate resources on the time slot are excluded from a sensed candidate resource set to be reported by a physical layer;

the number of time domain symbols overlapped between the idle time position in the channel occupation period and the PSSCH candidate resource in the time slot and a third preset threshold meet a second preset relationship, or the time domain position of PSFCH transmission is moved in the time slot, the time domain position of the moved PSFCH transmission is overlapped with the PSCCH associated with the PSSCH candidate resource in the time slot in the time domain, and all PSSCH candidate resources on the time slot are excluded from a candidate resource set in a resource selection window by a Medium Access Control (MAC) layer;

shifting a time domain position of a PSFCH transmission between time slots and executing the first available rule;

excluding the time slots in the resource pool when mapping PSFCH time domain resources and executing the first available rule;

the timeslot stops PSFCH transmission and the first availability rule is executed.

19. The method according to claim 16 or 18, wherein said moving the time domain position of the PSFCH transmission within the time slot comprises:

the time slot comprises L symbols, corresponding symbol indexes of the L symbols are from S to S + L-1, the index of the symbol with the minimum index in the overlapped symbols between the idle time position in the channel occupation period and the L symbols in the time slot of the resource pool is Q, the index of the available symbol in the time slot is from S to Q-1, and the last symbol index allowed to be used for PSFCH transmission in the time slot is Q-1;

the number of symbols moved by the PSFCH symbols in the time slot is P-Q +1, the second symbol index of the PSFCH transmission before the movement is P, and the second symbol index of the PSFCH transmission after the movement is Q-1;

Q-S is larger than or equal to a fourth preset threshold, the number of symbols moved in the time slot by the PSFCH symbols is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is Q-1;

Q-S is larger than or equal to a fourth preset threshold, the number of symbols moved in the time slot by the PSFCH symbols is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is S +1;

Q-S is larger than or equal to a fourth preset threshold, the number of symbols moved by the PSFCH symbols in the time slot is P-Q +1, the second symbol index transmitted by the PSFCH before movement is P, and the second symbol index transmitted by the PSFCH after movement is located between S +1 and Q-1;

and Q-S is smaller than a fourth preset threshold, and according to configuration, or preconfiguration or predefining, the time domain position of PSFCH transmission is moved between time slots, or the time slots in the resource pool are excluded or the time slots stop PSFCH transmission when PSFCH time domain resources are mapped.

20. The method according to claim 16 or 18, wherein after shifting the time domain position of a PSFCH transmission between time slots, the time domain position of the PSFCH transmission is the index symbol of the PSFCH transmission before shifting plus 12 or 14; or the time domain position of the PSFCH transmission is the index symbol of the PSFCH transmission minus 12 or 14 before shifting.

21. A communications node, comprising: a processor; the processor is adapted to implement the data transmission method according to any of claims 1-20 when executing a computer program.

22. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the data transmission method according to any one of claims 1 to 20.